Portable beverage cooler



FIG. 1 is a perspective view of the portable beverage cooler showing my new design;

FIG. 2 is an enlarged top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is an end view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a bottom plan view thereof.

The fragmentary showing of a strap in FIGS. 1, 3, 4 and 5 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portable beverage cooler, substantially as shown and described. 